Venture capital firms Navitas Capital, Greensoil Building Innovation Fund, Bienville Capital Management and Riverpark Funds also took part in the round along with previous investors The Westly Group, Rockport Capital, Circle Ventures and Thrive Capital.

Honest Buildings, founded by Riggs Kubiak in 2012, is an online construction project management platform for landlords and developers, allowing them to manage and solicit bids from contractors and oversee budgets, among other features. It started off as a “Linkedin for real estate” matching developers with architects and construction firms before it changed its business model in 2015.

The latest round brings its total venture funding to around $30 million, according to Crunchbase. In June 2015 it raised $5 million in a Series A-2 round led by the Milstein family’s venture arm, Circle Ventures.